【英文标准名称】:Softwareproductevaluation--Part1:Generaloverview
【原文标准名称】:软件产品评价.第1部分:总概览
【标准号】:JISX0133-1-1999
【标准状态】:现行
【国别】:日本
【发布日期】:1999-04-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonInformationTechnology
【标准类型】:()
【标准水平】:()
【中文主题词】:计算机软件;额定值;合格;数据处理
【英文主题词】:dataprocessing;computersoftware;ratings;conformity
【摘要】:この規格は,J1SX0133群全体を紹介する。それぞれの部の概観を与え,J1SX0129群の品質モデルとJISX0133群との関係を説明する。この規格は,JISX0133群で使われる技術用語を定義し,ソフトウェア品質の仕様化及び評価の一般的な要求事項を記述することで,一般的な概念を明確にする。さらに,ゾフトウェア製品の品質を評価するために,フレームワークを提供し,ソフトウェア製品の測定及び評価の方法に対する要求事項を示す。
【中国标准分类号】:L77
【国际标准分类号】:01_040_35;35_080
【页数】:63P;A4
【正文语种】:日语


【英文标准名称】:Naturalgas-Calculationofcompressionfactors-Introductionandguidelines
【原文标准名称】:天然气.压缩因数的计算.介绍和指南
【标准号】:BSISO12213-1-1998
【标准状态】:作废
【国别】:英国
【发布日期】:1998-04-15
【实施或试行日期】:1998-04-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:天然气;质量;热力学;文献索引;成份允差;压缩气体;热力学性质;管道;测量特征;准确度;化学成分;数学计算;热值;相对密度
【英文主题词】:Calculatingmethods;Compacting;Compressedgas;Compression;Concentration(chemical);Conglomerates;Definition;Definitions;Entries;Gasmixtures;Generalconditions;Materialstesting;Mathematicalcalculations;Naturalgas;Realgasfactors
【摘要】:ThisInternationalStandardspecifiesmethodsforthecalculationofcompressionfactorsofnaturalgases,naturalgasescontainingasyntheticadmixtureandsimilarmixturesatconditionsunderwhichthemixturecanexistonlyasagas.Thestandardisinthreeparts:part1givesanintroductionandprovidesguidelinesforthemethodsofcalculationdescribedinparts2and3.Part2givesamethodforusewherethedetailedmolarcompositionofthegasisknown.Part3givesamethodforusewherealessdetailedanalysis,comprisingsuperiorcalorificvalue(volumetricbasis),relativedensity,carbondioxidecontentand(ifnon-zero)hydrogencontent,isavailable.Bothmethodsareapplicabletodrygasesofpipelinequalitywithintherangeofconditionsunderwhichtransmissionanddistribution,includingmeteringforcustodytransferorotheraccountingpurposes,arenormallycarriedout.Ingeneral,suchoperationstakeplaceattemperaturesbetweenabout263Kand338K(approximately-10℃to65℃)andpressuresnotexceeding12MPa(120bar).Withinthisrange,theuncertaintyofpredictionofbothmethodsisabout±0.1%providedthattheinputdata,includingtherelevantpressureandtemperature,havenouncertainty.NOTE—PipelinequalitygasisusedinthisInternationalStandardasaconcisetermforgaswhichhasbeenprocessedsoastobesuitableforuseasindustrial,commercialordomesticfuel.Althoughthereisnoformalinternationalagreementuponthecompositionandpropertiesofagaswhichcomplieswiththisconcept,somequantitativeguidanceisprovidedin5.1.1.Adetailedgasqualityspecificationisusuallyamatterforcontractualarrangementsbetweenbuyerandseller.Themethodgiveninpart2isalsoapplicable(withincreaseduncertainty)tobroadercategoriesofnaturalgas,includingwetorsourgases,withinawiderrangeoftemperaturesandtohigherpressures,forexampleatreservoirorundergroundstorageconditionsorforvehicular(NGV)applications.Themethodgiveninpart3isapplicabletogaseswithahighercontentofnitrogen,carbondioxideorethanethannormallyfoundinpipelinequalitygas.Themethodmayalsobeappliedoverwiderrangesoftemperatureandpressurebutwithincreaseduncertainty.Forthecalculationmethodsdescribedtobevalid,thegasmustbeaboveitswaterandhydrocarbondewpointsattheprescribedconditions.Thestandardgivesalloftheequationsandnumericalvaluesneededtoimplementbothmethods.Verifiedcomputerprogrammesareavailable(seeannexB).
【中国标准分类号】:E24
【国际标准分类号】:75_060
【页数】:20P.;A4
【正文语种】:英语